Comment 1 for bug 1670481

Revision history for this message
Michael Hohnbaum (hohnbaum) wrote : Re: [Bug 1670481] [NEW] Backport "populate PCI DT in reverse order" patch

Jon,

A QEMU backport request. Please have the Server team evaluate.

Thanks.

                     Michael

On 03/06/2017 12:19 PM, Launchpad Bug Tracker wrote:
> bugproxy (bugproxy) has assigned this bug to you for Ubuntu:
>
> == Comment: #0 - MIKHAIL S. MEDVEDEV <email address hidden> - 2017-03-03 14:21:43 ==
> ---Problem Description---
> On ppc64el qemu the order of device scanning was recently changed, causing device names to be in reverse order compared to e.g. x86. This is creating a need for all sorts of work arounds to make the code that assumes certain order of devices to work on Power.
>
> The fix has been proposed and it appears it would go into Qemu 2.9, see [1]. It might be awhile until qemu 2.9 gets widely adopted as default. It would be beneficial if the fix can be backported to an earlier versions of Qemu.
>
> [1] http://patchwork.ozlabs.org/patch/731061/
>
> ---uname output---
> Linux devstack-xenial-ppc64-84615 4.8.0-39-generic #42~16.04.1-Ubuntu SMP Mon Feb 20 15:09:38 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux
>
> Machine Type = 8247-21L
>
> ---Debugger---
> A debugger is not configured
>
> ---Steps to Reproduce---
>
>
> Contact Information = Mikhail Medvedev <email address hidden> / Tiago Rodrigues de Mello <email address hidden>
>
> ** Affects: ubuntu
> Importance: Undecided
> Assignee: Taco Screen team (taco-screen-team)
> Status: New
>
>
> ** Tags: architecture-ppc64le bugnameltc-152251 severity-medium targetmilestone-inin16042

--
Michael Hohnbaum
OIL Program Manager
Power (ppc64el) Development Project Manager
Canonical, Ltd.